Quartiles of DNA methylation | ||||
---|---|---|---|---|
Q4 (high) | Q3 | Q2 | Q1 (low) | |
Period of DNA extraction | ||||
Previously extracted DNA | ||||
Adjusted ORa | 1. 0 (referent) | 0.99 | 1.01 | 1.44 |
95% CI | (0.5–1.9) | (0.5–2.0) | (0.8–2.7) | |
Cases, controls | 33, 36 | 33, 36 | 34, 36 | 51, 39 |
Newly extracted DNA | ||||
Adjusted ORa | 1.0 (referent) | 0.84 | 0.82 | 0.61 |
95% CI | (0.5–1.3) | (0.5–1.3) | (0.4–1.0) | |
Cases, controls | 81, 65 | 74, 70 | 68, 66 | 54, 71 |
Time from blood collection to diagnosis | ||||
Previously extracted DNA | ||||
1 to <2 years | ||||
Adjusted ORa,b | 1.0 (referent) | 0.99 | 1.16 | 1.41 |
95% CI | (0.4–2.7) | (0.4–3.0) | (0.6–3.6) | |
Cases, controls | 11, 36 | 10, 36 | 13, 36 | 16, 39 |
2 to <4 years | ||||
Adjusted ORa,b | 1.0 (referent) | 1.15 | 1.00 | 1.39 |
95% CI | (0.5–2.7) | (0.4–2.4) | (0.6–3.2) | |
Cases, controls | 14, 36 | 16, 36 | 14, 36 | 21, 39 |
≥ 4 years | ||||
Adjusted ORa,b | 1.0 (referent) | 0.89 | 0.97 | 1.53 |
95% CI | (0.3–2.8) | (0.3–3.1) | (0.6–4.3) | |
Cases, controls | 8, 36 | 7, 36 | 7, 36 | 14, 39 |
Newly extracted DNA | ||||
2 to <4 years | ||||
Adjusted ORa,b | 1. 0 (referent) | 0.88 | 0.73 | 0.68 |
95% CI | (0.5–1.5) | (0.4–1.3) | (0.4–1.2) | |
Cases, controls | 43, 65 | 43, 70 | 32, 66 | 33, 71 |
≥4 years | ||||
Adjusted ORa,b | 1.0 (referent) | 0.80 | 1.00 | 0.51 |
95% CI | (0.4–1.5) | (0.6–1.8) | (0.3–1.0) | |
Cases, controls | 38, 65 | 31, 70 | 36, 66 | 21, 71 |